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What can , and be used for?

...um="20" /> </f:viewParam> <f:viewAction action="#{bean.onload}" /> </f:metadata> <h:message for="id" /> with public void onload() { // ... } The <f:viewAction> is however new since JSF 2.2 (the <f:viewParam> already exists since JSF 2.0). If you c...
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Android 4.3 Bluetooth Low Energy unstable

... Can anyone confirm if android.bluetooth.BluetoothGatt can only handle one pending GATT operation PER DEVICE, PER PROCESS, or PERIOD (ie: across all processes). I presume it is PER DEVICE, but this problem is so mucked up that it wouldn'...
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How to parse Excel (XLS) file in Javascript/HTML5

...rseExcel = function(file) { var reader = new FileReader(); reader.onload = function(e) { var data = e.target.result; var workbook = XLSX.read(data, { type: 'binary' }); workbook.SheetNames.forEach(function(sheetName) { // Here is your object ...
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How to “fadeOut” & “remove” a div in jQuery?

... event.preventDefault(); var $button = $(this); if(confirm('Are you sure about this ?')) { var $item = $button.closest('tr.item'); $item.addClass('removed-item') .one('webkitAnimationEnd oanimationend msAnimationEnd animationen...
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JavaScript global event mechanism

...tpRequest'); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.onload = function() { if (xhr.status === 200) { console.log('JS error logged'); } else if (xhr.status !== 200) { console.error('Failed to log JS error.'); console.error(xhr); console.er...
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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been

...ctx.restore(); If you need img to be loaded: var img = new Image(); img.onload = function() { ctx.save(); ctx.globalAlpha = 0.4; ctx.drawImage(img, x, y); ctx.restore() }; img.src = "http://..."; Notes: Set the 'src' last, to guarantee that your onload handler is called on all...
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Setting PATH environment variable in OSX permanently

...file. Restart the terminal. You can check with echo $PATH at the prompt to confirm if the path was added to the environment variable. For example: to add a new path /usr/local/sbin to the PATH variable: cd /etc/paths.d sudo vi newfile Add the path to the newfile and save it. Restart the termina...
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Increasing the maximum number of TCP/IP connections in Linux

...-s 1472 ...) Check for rate limiting. On Linux, this is configured with tc Confirm that the bandwidth you think exists actually exists using e.g., iperf Confirm that your protocol is sane. Remember latency. If this is a gigabit+ LAN, can you use jumbo packets? Are you? Possibly I have misunderstoo...
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Why isn't my JavaScript working in JSFiddle?

... The reason it didn't work initially is that test was defined inside of an onLoad function; using window.test = function(){/*...*/} makes it work perfectly well. – ellisbben Sep 2 '11 at 15:18 ...
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PostgreSQL: Is it better to use multiple databases with one schema each, or one database with multip

...eight than a number of databases, although I cannot find a reference which confirms this. But if you really want to keep things very separate (instead of refactoring the web application so that a "customer" column is added to your tables), you may still want to use separate databases: I assert that...